In a story about a criminal investigation, which character is most clearly round?

A. Manny Winters, a journalist who tries to crack the case to win his parents' approval

B. Captain Brewster, the hot-tempered head of his precinct who always yells at detectives

C. Tia Gutierrez, the fair-minded judge who tries to keep the police from overreaching

D. Detective Spalding, the no-nonsense investigator who stops at
nothing to find the truth